Exponential Decay Calculator

Question 1

What is exponential decay?

Answer

Exponential decay occurs when a quantity decreases by a fixed percentage over equal time periods. The decay slows over time.

Question 2

What's the difference between exponential growth and decay?

Answer

Growth uses (1+r)ᵗ which increases over time, while decay uses (1-r)ᵗ which decreases over time. Growth adds, decay subtracts.

Question 3

What is half-life?

Answer

Half-life is the time required for a quantity to reduce to half its initial value. For exponential decay, the half-life is constant regardless of the starting amount.

Question 4

What is this used for?

Answer

Exponential decay models are used in physics (radioactive decay), finance (asset depreciation), pharmacology (drug clearance), and environmental science.

Question 5

Can the decay rate exceed 100%?

Answer

No, the decay rate must be between 0% and 100%. A rate of 100% would mean immediate decay to zero.

Question 6

What is exponential decay?

Answer

Exponential decay occurs when a quantity decreases by a fixed percentage over equal time periods. The decay slows over time.

Question 7

What's the difference between exponential growth and decay?

Answer

Growth uses (1+r)ᵗ which increases over time, while decay uses (1-r)ᵗ which decreases over time. Growth adds, decay subtracts.

Question 8

What is half-life?

Answer

Half-life is the time required for a quantity to reduce to half its initial value. For exponential decay, the half-life is constant regardless of the starting amount.

Question 9

What is this used for?

Answer

Exponential decay models are used in physics (radioactive decay), finance (asset depreciation), pharmacology (drug clearance), and environmental science.

Question 10

Can the decay rate exceed 100%?

Answer

No, the decay rate must be between 0% and 100%. A rate of 100% would mean immediate decay to zero.

Exponential Decay Calculator

Formula

How It Works

Examples

Car depreciation: $30,000 at 15% for 5 years

Radioactive decay of 200g at 8% for 10 years

Frequently Asked Questions

What is exponential decay?

What's the difference between exponential growth and decay?

What is half-life?

What is this used for?

Can the decay rate exceed 100%?

Related Calculators

Exponential Decay Calculator

Formula

How It Works

Examples

Car depreciation: $30,000 at 15% for 5 years

Radioactive decay of 200g at 8% for 10 years

Frequently Asked Questions

What is exponential decay?

What's the difference between exponential growth and decay?

What is half-life?

What is this used for?

Can the decay rate exceed 100%?

Related Calculators